/* Copyright (C) 2016 The Android Open Source Project
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This file implements interfaces from the file jvmti.h. This implementation
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* is licensed under the same terms as the file jvmti.h. The
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* copyright and license information for the file jvmti.h follows.
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*
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* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#ifndef ART_OPENJDKJVMTI_TI_STACK_H_
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#define ART_OPENJDKJVMTI_TI_STACK_H_
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#include "jni.h"
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#include "jvmti.h"
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#include "art_method.h"
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#include "base/mutex.h"
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#include "stack.h"
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namespace openjdkjvmti {
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class StackUtil {
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public:
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static jvmtiError GetAllStackTraces(jvmtiEnv* env,
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jint max_frame_count,
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jvmtiStackInfo** stack_info_ptr,
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jint* thread_count_ptr)
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REQUIRES(!art::Locks::thread_list_lock_);
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static jvmtiError GetFrameCount(jvmtiEnv* env, jthread thread, jint* count_ptr);
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static jvmtiError GetFrameLocation(jvmtiEnv* env,
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jthread thread,
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jint depth,
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jmethodID* method_ptr,
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jlocation* location_ptr);
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static jvmtiError GetStackTrace(jvmtiEnv* env,
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jthread thread,
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jint start_depth,
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jint max_frame_count,
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jvmtiFrameInfo* frame_buffer,
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jint* count_ptr);
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static jvmtiError GetThreadListStackTraces(jvmtiEnv* env,
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jint thread_count,
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const jthread* thread_list,
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jint max_frame_count,
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jvmtiStackInfo** stack_info_ptr);
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static jvmtiError GetOwnedMonitorStackDepthInfo(jvmtiEnv* env,
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jthread thread,
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jint* info_cnt_ptr,
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jvmtiMonitorStackDepthInfo** info_ptr);
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static jvmtiError GetOwnedMonitorInfo(jvmtiEnv* env,
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jthread thread,
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jint* owned_monitor_count_ptr,
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jobject** owned_monitors_ptr);
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static jvmtiError NotifyFramePop(jvmtiEnv* env, jthread thread, jint depth);
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static jvmtiError PopFrame(jvmtiEnv* env, jthread thread);
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};
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struct FindFrameAtDepthVisitor : art::StackVisitor {
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public:
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FindFrameAtDepthVisitor(art::Thread* target, art::Context* ctx, jint depth)
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REQUIRES_SHARED(art::Locks::mutator_lock_)
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: art::StackVisitor(target, ctx, art::StackVisitor::StackWalkKind::kIncludeInlinedFrames),
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found_frame_(false),
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cnt_(0),
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depth_(static_cast<size_t>(depth)) { }
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bool FoundFrame() {
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return found_frame_;
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}
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bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS {
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if (GetMethod()->IsRuntimeMethod()) {
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return true;
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}
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if (cnt_ == depth_) {
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// We found our frame, exit.
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found_frame_ = true;
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return false;
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} else {
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cnt_++;
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return true;
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}
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}
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art::ShadowFrame* GetOrCreateShadowFrame(/*out*/bool* created_frame)
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REQUIRES_SHARED(art::Locks::mutator_lock_);
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private:
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bool found_frame_;
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size_t cnt_;
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size_t depth_;
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};
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} // namespace openjdkjvmti
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#endif // ART_OPENJDKJVMTI_TI_STACK_H_
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